FOE    THE   YEARS   1901-1905,  INCLUSIVE. 
701 
Paleontology— Continued. 
Genera  and  species  described — Continued. 
Platystrophia    lynx    von    Buch,    Hayes 
and  Ulrich,  1. 
lynx,  Cumings  and  Mauck,  1. 
Platy pterygium    densinerve    Fontaine?, 
Fontaine,  5. 
Platypterna  E.  Hitchcock,  Lull,  2. 
concamerata   <E.  Hitchcock),  Lull. 
2. 
deaniana  E.  Hitchcock,  Lull,  2. 
delicatula   (E.  Hitchcock),  Lull,  2. 
digitigrada  E.  Hitchcock,  Lull,  2. 
gracillima  E.  Hitchcock,  Lull,  2. 
recta   (E.  Hitchcock),  Lull,  2. 
tenuis  E.  Hitchcock,  Lull,  2. 
Platytrochus  speciosus  Gabb  and  Horn, 
Vaughan,  15. 
Platyxystrodus  occidentalis  (St.  John), 
Eastman,  10. 
Plectambonites  Pander,  Grabau,  1. 
pisum  n.  sp.,  Ruedemann,  2. 
sericea   (Sowerby),  Grabau,  1. 
sericeus   (Sowerby),  Weller,  6. 
cf.   sericeus   Sowerby,    Kindle   and 
Breger,   1. 
sericeus  Sowerby  var.  asper  James, 
Ruedemann,  2. 
trausversalis    (Wahlenberg) ,    Gra- 
bau, 1. 
Plectodon  Carpenter,  Ball,  8. 
Plectorthis    Hall   and   Clarke,   subg.   of 
Orthis,  Walcott,  12. 
?  ntava  Matthew,  Walcott,  12. 
christianise  Kjerulf,  Walcott,  12. 
daunus  n.  sp.,  Walcott,  12. 
desmopleura  Meek,  Walcott,  12. 
desmopleura  nympha  n.  var.,  Wal- 
cott, 12. 
diabJo  n.  sp.,  Walcott,  12. 
doris  n.  sp.,  Walcott,  12. 
hastingsensis  n.  sp.,  Walcott,  12. 
iddingsi  n.  sp.,  Walcott,  12. 
indianola  n.  sp.,  Walcott,  12. 
johannensis  Matthew,  Walcott,  12. 
kayseri  n.  sp.,  Walcott,  12. 
linnarssoni  Kayser,  Walcott,  12. 
newtonensis  Weller,  Walcott,   12. 
pagoda  n.  sp.,  Walcott,  12. 
papias  n.  sp.,  Walcott,  12. 
plicatella  Hall,  Raymond    (P.  E.), 
1. 
plicatella    (Hall),  Weller,  6. 
remnicha  Winchell,  Walcott,  12. 
remnicha  sulcata  n.  var.,  Walcott, 
12. 
remnicha  texana  n.  var.,  Walcott, 
12. 
remnicha     winfieldensis     n.     var., 
Walcott,  12. 
retroflexa  Matthew,  Walcott,  12. 
saltensis  Kayser,  Walcott,  12. 
tullbei-gi  n.  sp.,  Walcott,  12. 
wichitaeusis  n.  sp.,  Walcott,  12. 
wichitaensis    laeviusculus    n.    var., 
Walcott,  12. 
wiraani  n.  sp.,  Walcott,  12. 
Paleontology— Continued. 
Genera  and  species  described — Continued. 
Plectorthis  2  sp.?,  Walcott,  12. 
Plesiastarte  Fischer,  Dall,  8. 
Plesiornis  E.  Hitchcock,  Lull,  2. 
mirabilis  E.  Hitchcock,  Lull,  2. 
pilulatus  E.  Hitchcock,  Lull,  2. 
Plesiosaurus   gouldii    Williston,    Willis- 
ton,  14. 
Plethomytilus   cuneatus   n.    sp.,    Kindle 
and  Breger,  1. 
Plethospira  socialis  Girty?,  Kindle,  1. 
Pleuracanthus    (Diplodus)     compressus 
Newberry,  Eastman,  10. 
Pleuristion  brachyccelus  n.  gen.  and  sp., 
Case,  3. 
Pleuroceras  Rafinesque,  Letson,  1. 
subulare  Lea,  Letson,  1. 
Pleuroccelus,  Lucas,  20. 
Pleurodictyum   lenticulare,   Beecher,   1. 
Pleurofusia  De  Greg.,  Casey,  5. 
Pleuroliria  De  Greg.,  Casey,  5. 
albida  Perry,  Casey,  5. 
barretti  Guppy,  Casey,  5. 
cochlearis  Con.,  Casey,  5. 
crenulosa  n.  sp.,  Casey,  5. 
jacksonella  n.  sp.,  Casey,  5. 
simplex  n.  sp.,  Casey,  5. 
subsimilis  n.  sp.,  Casey,  5. 
Pleurolucina  Dall,  Dall,  8. 
Pleuromeris  Conrad,  Dall,  8. 
Pleuromya      inconstans     Castillo     and 
Aguilera,  Cragin,  2. 
inconstans     var.     curta     n.     var., 
Cragin,  2. 
?  sp.,  Madsen,  1. 
Pleuronotus  decewi    (Billings),   Kindle, 
1. 
Pleuropachydiscus    hoffmannii    (Gabb), 
var.,  Whiteaves,  12. 
Pleurophorella  n.  gen.,  Girty,  5. 
papillosa  n.  sp.,  Girty,  5. 
Pleurophorus      angulatus      Meek      and 
Worthen?,  Girty,  3. 
costatus  (Brown),  Beede,  1. 
occidentalis    Meek    and    Hayden?, 
Girty,  3. 
subcostatus    Meek    and    Worthen, 
Beede,  1. 
subcostatus    Meek    and    Worthen, 
Girty,  3. 
tropidophorus   Meek,    Beede,    1. 
whitei  n.  sp.,  Beede,  4. 
sp.,  Beede,  8. 
Pleurotoma  Lamarck,  Arnold,  2. 
(Hemipleurotoma)     albida     Perry, 
Martin,  5. 
arnica  n.  sp.,  Casey,  4. 
ancilla  n.  sp.,  Casey,  4. 
(Borsonia)  bartschi  n.  sp.,  Arnold. 
o_ 
(Hemipleurotoma)         bellacrenata 
Conrad,  Martin,  5. 
(Hemipleurotoma)    calvertensis   n. 
sp.,  Martin,  5. 
(Dolichotoma)  carpenteriana  Gabb, 
Arnold,  2. 
